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If you want to set up a RAID array then you definitely want to use the RAID ON setting. And you will get AHCI by default (if it is hard coded in your motherboard's BIOS - meaning the board is not so old that it does not do AHCI).

I thought you were trying to set up the SSD without an additional RAID array.

If you want to set up a RAID array then you definitely want to use the RAID ON setting. And you will get AHCI by default (if it is hard coded in your motherboard's BIOS - meaning the board is not so old that it does not do AHCI).

I thought you were trying to set up the SSD without an additional RAID array.

Sorry TVeblen, I should have been a bit clearer on my inititial post.

Eventually I will replace the two spinners with a larger capacity 2TB single drive.

or: "AHCI is automatic in RAID mode and there is no option to change it"

I can't help with the SSD question. I have not played with one yet .
But I suggest starting a new thread and ask the question directly: "Will a SSD run properly in legacy IDE mode?" Someone here will know.

How to Enable AHCI - No option in BIOS.

Enable and/or Disable AHCII hope I am not duplicating something here. . . . I did look - Honest!
I ran into an interesting problem and found an easy fix.
First: I wanted to ENABLE AHCI because (supposedly) it improves HDD performance. (It also enables a host of other interesting features.)
I discovered the...

Hardware & Devices

cloned C:, installed AHCI drivers, changed BIOS to AHCI, D:'s GPT gonesee second post.
I have a 3TB drive D: for data formatted with GPT.
Had BIOS OnChip SATA Type set as "RAID" "As SATA Type" from back in the day. When I took out the RAID, I forgot to change this to AHCI when I reformatted and got rid of RAID drives!
Changing to "AHCI" "As SATA Type" as...

Installation & Setup

No AHCI option in BIOS, is my computer default in AHCI or IDE?I bought a brand new SSD, installed it in Windows 7, and there is no option in my BIOS for the SATA controller (to switch between IDE and AHCI Mode). How do I determine whether my computer's sata controller is using IDE or AHCI?
I want to make sure that my AHCI controller is enabled and not IDE...

Hardware & Devices

enable AHCI in Windows 7hi...
i found several tutorials to enable the AHCI-driver in win7/vista but the registry keys don't match mine...
the tutorial is as following:
1. Exit all Windows-based programs. 2. Click Start, type regedit in the Start Search box, and then press ENTER. 3. If you receive the User Account...

Hardware & Devices

AHCI to Enable or Not?Hi, I am using a HP Pavillion 180t computer with Window 7(SP-1), IE9 RC. 12GB Ram, Quad Core i7, 3.33Ghz.
I do not have AHCI enabled based upon the Tutorial to do so. Would enableing AHCI be of value to me? If so how? Any help appreciated.